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How To Save Money on Heating This Winter

Heating is the biggest line on most winter utility bills, and most of it is fixable for free or close to it. Here is exactly what to change, with rough dollar savings.

July 1, 202614 min read
A home thermostat on a wall next to a winter heating bill and a mug of tea

The first winter in our current house, the December gas bill was 187 dollars and I assumed that was just what winter cost. The house was old, the wind found every gap, and I told myself there was nothing to do but pay it. Then a neighbor mentioned he had cut his bill by about a third with a weekend of cheap fixes and a screwdriver, and I got curious enough to actually track where the heat was leaking.

What I learned is that heating is not one big expense, it is a stack of small leaks and lazy habits that add up. The good news is that the biggest wins cost nothing or close to it, and you can knock most of them out in a single Saturday. Here is the guide I wish someone had handed me that first cold December, with rough dollar figures so you can decide what is worth your time.

Set the thermostat back and let it work while you sleep

This is the single highest leverage change and it costs you nothing. The Department of Energy figure is that you save roughly 1 percent on your heating cost for every degree you set back over an 8 hour stretch. Turn the heat down 7 to 10 degrees while you sleep and while the house is empty during the day, and you are looking at real money, often 8 to 12 percent off the heating portion of your bill.

I keep ours at 68 when we are up and moving, and 60 overnight under a heavy comforter. The house cools while we sleep and warms back up on a schedule before the alarm goes off, so nobody actually feels the setback. The trick is to make it automatic. If you rely on remembering to nudge the dial down every night, you will forget, and the savings vanish.

A basic programmable thermostat runs about 25 dollars and handles the schedule for you. A smart thermostat that learns your routine and lets you adjust from your phone runs 120 to 250 dollars, and some gas utilities offer rebates that knock 50 to 100 dollars off that price. If you rent and cannot swap the unit, ask your landlord, or at minimum set a nightly phone reminder until it becomes habit.

Do not crank it to warm up faster

A furnace heats at the same rate no matter where you set the dial, so blasting it to 75 does not warm the house any quicker. It just overshoots and wastes gas. Set your target and leave it.

Seal the drafts before you buy anything else

You can run the furnace all you want, but if warm air is pouring out around your doors and windows you are paying to heat the yard. Sealing leaks is the best dollar for dollar return in this whole guide, and the materials are cheap.

On a windy day, walk the house with your hand near every window frame, exterior door, outlet on an exterior wall, and the attic hatch. Where you feel a draft, mark it. Then work through the fixes. Adhesive foam weatherstripping for doors and windows runs about 10 dollars a roll. A door sweep or a fabric draft stopper for the gap under exterior doors is 8 to 15 dollars. A tube of caulk for stationary gaps around window trim is a few dollars. Cheap foam gaskets behind outlet and switch plates on exterior walls cost about 5 dollars for a whole pack.

Sealing the obvious leaks in an average home commonly trims 5 to 15 percent off the heating bill, which is often 10 to 25 dollars a month in the cold stretch. For a total outlay under 40 dollars, nothing else here comes close. If you want a fuller walkthrough of low cost home fixes, the 25 budget friendly home hacks guide covers the same weekend energy in more rooms.

Use your curtains and the free heat from the sun

Windows are a two way street. During the day they can pull heat in, and at night they leak it back out. Managing them well costs nothing.

On sunny days, open the curtains and blinds on the south and west facing windows and let the sunlight warm those rooms for free. A south facing room can climb several degrees on a clear afternoon with the blinds up. Then, the moment the sun drops, close everything. Curtains are a surprisingly good insulator, and heavier or thermal lined curtains do even more. If you have a bare window in a room you use at night, a set of thermal curtains for 20 to 40 dollars pays for itself over a winter by slowing the heat crawling out through the glass.

The daily rhythm is simple. Curtains open when the sun is on the glass, curtains closed the rest of the time. It feels too small to matter until you notice the rooms holding their warmth an hour longer in the evening.

Heat the rooms you use, not the whole empty house

If you spend your evenings in one or two rooms, there is little point in paying to keep the guest room and the hallway at 68 degrees. Zoning your heat, even in a crude way, cuts the load your system carries.

For central heating, close or partially close the vents in rooms nobody uses and shut those doors. Do not seal off too many at once, since starving the system of airflow can strain it, but closing off a couple of genuinely unused rooms is fine. For the room where you actually spend the evening, a modern electric space heater running 40 to 80 dollars lets you drop the central thermostat lower and heat just that space. Used carefully, this can save 10 to 20 dollars a month.

Two safety rules that are not optional. Give any space heater at least three feet of clearance from furniture, curtains, and bedding, and never leave one running unattended or overnight. Plug it straight into the wall, never a power strip or extension cord.

Service the furnace and change the filter

A neglected furnace burns more fuel to do the same job, and the fix is almost embarrassingly cheap. The filter is the big one. A clogged filter chokes airflow, so the system runs longer and works harder to push warm air through the house. Check it monthly during heating season and swap it when it looks gray. Filters run 5 to 20 dollars each, and a fresh one can trim a few percent off the bill while extending the life of the whole system.

Beyond the filter, book a professional furnace tune up every year or two, which runs 80 to 150 dollars. A tech cleans the burners, checks the heat exchanger, and confirms it is running safely and efficiently. That last part matters, because a furnace that runs poorly is also the kind that leaks carbon monoxide. While you are at it, make sure your registers and radiators are not blocked by furniture or curtains, since covered vents force the system to run longer for less warmth in the room.

  • Check the furnace filter and replace if gray
  • Walk the house on a windy day and mark every draft
  • Program the thermostat for a nightly and daytime setback
  • Test the carbon monoxide detector and replace the battery
  • Clear furniture and curtains away from every vent and radiator
  • Reverse ceiling fans to clockwise on the low setting to push warm air down

Turn down the water heater, the quiet winter cost

Heating water is one of the largest energy costs in any home, and it climbs in winter because the water coming into the house is colder to start with. Most tanks ship set to 140 degrees, which is hotter than you need and a genuine scalding risk. Drop it to 120 degrees. It takes two minutes with the dial on the side of the tank, costs nothing, and cuts standby heat loss all winter. Expect somewhere in the range of 5 to 10 dollars a month depending on your tank and how much hot water you use.

If the tank itself feels warm to the touch, it is bleeding heat into the room. An insulating water heater blanket runs about 25 dollars and wraps the tank to hold that heat where it belongs. While you are down there, insulating the first few feet of exposed hot water pipe with foam sleeves costs a few dollars and helps the water arrive hot instead of lukewarm.

Heat yourself before you heat the house

Here is the reframe that changed how I think about winter. Your goal is not a warm house, it is a warm you. Warming a person takes a tiny fraction of the energy that warming 1,800 square feet of air does, so lean on that gap.

Layers first. A long sleeve base layer, a sweater, and thick socks let most people sit comfortably at 65 or even 62 degrees, which shaves real money off every hour the heat runs. A heavy throw blanket on the couch does the rest during a movie. For sleeping, a wool blanket or a warmer comforter means you can push the overnight setback lower without waking up cold.

The most efficient gadget in the house for this is a heated blanket or throw, which costs a few pennies of electricity per evening compared to dollars to warm the whole room with the furnace. Draping one over your lap while you read or watch TV lets you drop the thermostat a few more degrees with no discomfort at all. It feels almost too obvious, but it is the cheapest comfort per dollar you can buy in winter. For more of this mindset applied across the whole household, the save money every month guide runs the same playbook past heating.

Ask about budget billing and assistance programs

The last lever is not about using less heat, it is about paying for it more sanely. Winter bills spike, and a January statement that is triple your July one is hard to absorb. Two programs help.

Budget billing, offered by most gas and electric utilities, averages your yearly cost into 12 flat monthly payments so winter does not clobber you. It does not save you money overall, but it makes the bill predictable, which makes it far easier to budget around. Call your utility or check your online account to enroll.

If money is genuinely tight, look into assistance. In the United States, the Low Income Home Energy Assistance Program, known as LIHEAP, helps eligible households cover heating costs, and many utilities run their own hardship funds and payment plans on top of it. There is no shame in using these, that is what they exist for. Many also offer free or discounted home energy audits, where a technician finds your leaks and sometimes installs basic weatherproofing for free. To fold whatever you save into a plan that sticks, run the numbers through the budget planner and give the winter money a job.

What each change actually saves

Every home is different, so treat these as starting points rather than promises. The figures assume a typical single family home during the cold months.

ChangeRough costRough monthly savings
Thermostat setback 7 to 10 degreesFree to 25 dollars10 to 20 dollars
Sealing drafts and weatherstrippingUnder 40 dollars10 to 25 dollars
Thermal curtains, closed at night20 to 40 dollars per window3 to 8 dollars
Space heating one room, central turned down40 to 80 dollars10 to 20 dollars
Fresh furnace filter5 to 20 dollars3 to 8 dollars
Water heater set to 120 degreesFree5 to 10 dollars
Layers, blankets, heated throw20 to 60 dollars8 to 15 dollars

Stack even half of these and the combined effect on a cold month bill is real, often 30 to 60 dollars, without your house feeling any less comfortable. If your utility bills are the whole problem and not just heating, the save money on utilities guide widens the same approach to water, power, and trash.

Key Takeaways

  • Thermostat setbacks are the biggest free win, worth about 1 percent per degree.
  • Sealing drafts for under 40 dollars is the best dollar for dollar return here.
  • Heat the people and the rooms you use, not the whole empty house.
  • A fresh furnace filter and a 120 degree water heater are cheap, easy savings.
  • Budget billing and LIHEAP make winter bills predictable and, when needed, cheaper.

Frequently asked questions

How low can I safely set my thermostat in winter?

For an occupied home, most people are comfortable at 62 to 68 degrees with a sweater and a blanket, and there is no safety issue setting it there. When the house is empty or you are asleep, dropping to around 60 is fine and saves the most. The one hard floor is to keep it above roughly 55 degrees even when you travel, so your pipes do not freeze and burst, which is a far more expensive problem than any heating bill.

Are space heaters cheaper than running central heat?

Only if you use them to heat one room while turning the central thermostat down. A space heater running in one room while the furnace still keeps the whole house warm just adds cost. The savings come from the trade, lower the central heat and warm only the room you are actually sitting in. Run it safely, straight into the wall, with clearance, and never overnight.

Do smart thermostats really pay for themselves?

For most households, yes, though it takes a season or two. A smart thermostat mainly saves by nailing the setbacks you would otherwise forget, and by letting you adjust from your phone when plans change. If you are already disciplined with a 25 dollar programmable model, the upgrade is more about convenience than dramatic new savings. Check whether your utility offers a rebate, which shortens the payback considerably.

Which single change should I do first if I only do one?

Set up a thermostat setback tonight, because it is free and it is the largest lever. If you want one paid project this weekend, seal your drafts, since 30 or 40 dollars of weatherstripping and caulk returns more per dollar than anything else on the list. Those two together handle the bulk of what most homes are wasting.

Is it worth heating the house during the day if nobody is home?

Not to comfortable levels. Let it drift down to around 60 while the house is empty and warm it back up before you return. The old myth that reheating a cold house costs more than holding it warm all day has been tested repeatedly and does not hold up. A house always loses less heat when it is cooler, so a daytime setback saves money every time.

Where to start this weekend

You do not need to do all eight of these. Pick the free wins first, program a nightly thermostat setback, drop the water heater to 120 degrees, and start opening the curtains for the afternoon sun. Then spend one Saturday and under 40 dollars sealing the drafts you can feel with your hand. That combination alone tends to move a cold month bill by a noticeable chunk, and you will feel the difference in how long each room holds its warmth in the evening.

Heating does not have to be the expense you dread every December. It is a stack of small leaks and lazy defaults, and almost every one of them has a cheap fix. Knock out the free stuff tonight, tackle the cheap stuff this weekend, and let the savings compound through the whole cold season. For a broader plan to ride out an expensive stretch, the frugal living during a recession guide pairs well with everything here.

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About the author

Mohsin Shahzad

Founder & Editor, The Budget Ledger

Mohsin Shahzad is the founder and editor of The Budget Ledger. He started the site to share clear, jargon-free money advice, the kind of practical budgeting, saving, and frugal-living tips that actually hold up on a real, everyday budget instead of a perfect spreadsheet.

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